a yellow-white, more or less viscid substance produced by suppuration and found in abscesses, sores, etc., consisting of a liquid plasma in which white blood cells are suspended. Origin of pus. Latin.
Definition of task. 1  1a : a usually assigned piece of work often to be finished within a certain timeb : something hard or unpleasant that has to be donec : duty, function. 2  2 : subjection to adverse criticism : reprimand âused in the expressions to take, call, or bring to task.
The seven-task process defined above is an excellent representation of systems engineering as is presently practiced and should serve to avoid most of the problems that have plagued the development of large, complex systems in the past.